Originally Posted by The Infernal
I'm sceptical as to whether we will ever see a proper X4 or any sequel to the main trilogy. I think DoFP if it does involve Stewart, Jackman and co. is probably the best case scenario. Plus I think many people and probably Fox themselves now consider the First Class movies as the new main franchise.
I feel like DOFP is a cross-over movie between the cast of the original trilogy and the cast of First Class. Its like The Avengers of the X-Men movie franchise. So right now, I don't consider it yet as a direct sequel to X-Men: First Class.